#include<iostream>

using namespace std;

int main()
{
	while (cin)
	{
		int sum(0);
		int n, x, m;
		cin >> n;
		for (int i = 0; i < n; i++)
		{
			cin >> x >> m;

			for (int j = 0; j < m; j++)
			{
				sum += x;
				x++;
			}
		}

		if (0 == sum % 2)
			cout << "second" << endl;
		else
			cout << "first" << endl;
	}
	
	return 0;
}